<template>
    <fieldset>
        <legend>tab切换</legend>
        <!-- <button class="tab-button active">1</button>
        <button class="tab-button">2</button>
        <button class="tab-button">3</button> -->
        <button v-for="btn in buttons" :key="btn" :class="['tab-button',{active:btn===selectBtn}]" 
        @click="handleClick(btn)">{{btn}}</button>
        <div class="tab" :is="dynamic">123</div>
    </fieldset>
</template>
<script>
import emailCom from "./email-com.vue"
import homeCom from "./home-com.vue"
import mineCom from "./mine-com.vue"
export default{
    data(){
        return{
            buttons:['email','mine','home'],
            selectBtn:"email"
        }
    },
    methods:{
        handleClick(btn){
            console.log(btn)
            this.selectBtn = btn;
        }
    },
   components:{
       "email-com":emailCom,
        "mine-com":mineCom,
        "home-com":homeCom,
   },
    computed:{
        dynamic(){
            return this.selectBtn+"-com"
            
        }
    },
}
</script>
</script>
<style scoped>
    .tab-button {
        padding: 6px 10px;
        border-top-left-radius: 3px;
        border-top-right-radius: 3px;
        border: 1px solid #ccc;
        cursor: pointer;
        background: #f0f0f0;
        margin-bottom: -1px;
        margin-right: -1px;
    }

    .tab-button:hover {
        background: #e0e0e0;
    }

    .tab-button.active {
        background: hotpink;
    }

    .tab {
        border: 1px solid #ccc;
        padding: 10px;
    }
    h1 {
        margin:0;
    }
</style>
